version: 2.2.0

Cannot find file System.Linq.Enumerable+WhereSelectListIterator`2[Curse.Radium.Minecraft.Models.ManifestResource,System.Int32] for addon 441114 in database. Aborting installation.

This is error that shows up while i try to intall. Some one said this was problem with network but i installed other modpack without issues. The same problem shows up when trying to install your SlightlyCinnamonFlavoured, but not Harcore one.

Same thing with me

This is an issue with CurseForge, not the modpack.